Chapter 18 Section 1 (Electrical Potenial Energy) Vocab Uniform electric field: an electric field that has all of the field lines parallel to and equidestant from each other Electrical potential energy- can be solved for by taking the product of the force generated by the field and its position in the field.
E= a uniform electric field
d= displacement
Can use the initial and final positions of the displacement can be found using this:
Fun Fact: A uniform electric field will always exert a constant force on a charged object. Section 2 (Potential Difference) Vocab Electric potential(V): the electrical potential energy per unit charge
relative difference in electric potential between two points. Measured in volts (V).
V= -Ed
Fun Fact: the electric potential at a given point is INDEPENDENT of the charge at that point
Section 3 (Capacitance):
Vocab: capacitor: a device that is used in a variety of electric circuits to perform many functions parallel-plate capacitor: this design consists of two parallel metal plates separated by a small distance capacitance: the measurement of the ability of a conductor to store energy in the form of electrically separated charges
The SI unit for capacitance is the farad (F)
Fun review problems that you SHOULD TRY:
(Section 1)
1. Two alpha particles each consisting of two protons and two neutrons have an electrical potential energy of 6.32 x 10 -19 J. What is the distance between these particles at this time?
(Section 2)
1. Two point charges of magnitude 5.0 nC and -3.0 nC are separated by 35.0 cm. What is the potential difference between a point infinity far away and a point midway between the crazy awesome charges.
2. The gap between electrodes in a spark plug in Mr. Strong's toiletry closet is 0.060 cm. To produce an electric spark in a gasoline air mixture in Mr. Strong's hair dryer, there must be an electric field of 3.0 x 10 6 V/m. What minimum potential difference must be supplied by the ignition circuit to start Mr. Strong's gasoline-powered hairdryer?
(Section 3)
1. A parallel-plate capacitor has a capacitance of 1.3 pF. If a 12.0 V battery is connected to this capacitor, how much electrical potential energy would it store?
2. We demand you to make a parallel-plate capacitor having a capacitance of 1.00 F and a plate separation of 1.00 mm. Calculate the required surface area of each plate.
Faughn, Jerry S., and Raymond A. Serway. Holt Physics. Austin: Harcourt Classroom Education Company, 2002.
Section 1 (Electrical Potenial Energy)
Vocab
Uniform electric field: an electric field that has all of the field lines parallel to and equidestant from each other
Electrical potential energy- can be solved for by taking the product of the force generated by the field and its position in the field.
E= a uniform electric field
d= displacement
Can use the initial and final positions of the displacement can be found using this:
Fun Fact: A uniform electric field will always exert a constant force on a charged object.
Section 2 (Potential Difference)
Vocab
Electric potential(V): the electrical potential energy per unit charge
relative difference in electric potential between two points. Measured in volts (V).
V= -Ed
Fun Fact: the electric potential at a given point is INDEPENDENT of the charge at that point
Section 3 (Capacitance):
Vocab:
capacitor: a device that is used in a variety of electric circuits to perform many functions
parallel-plate capacitor: this design consists of two parallel metal plates separated by a small distance
capacitance: the measurement of the ability of a conductor to store energy in the form of electrically separated charges
The SI unit for capacitance is the farad (F)
Fun review problems that you SHOULD TRY:
(Section 1)
1. Two alpha particles each consisting of two protons and two neutrons have an electrical potential energy of 6.32 x 10 -19 J. What is the distance between these particles at this time?
(Section 2)
1. Two point charges of magnitude 5.0 nC and -3.0 nC are separated by 35.0 cm. What is the potential difference between a point infinity far away and a point midway between the crazy awesome charges.
2. The gap between electrodes in a spark plug in Mr. Strong's toiletry closet is 0.060 cm. To produce an electric spark in a gasoline air mixture in Mr. Strong's hair dryer, there must be an electric field of 3.0 x 10 6 V/m. What minimum potential difference must be supplied by the ignition circuit to start Mr. Strong's gasoline-powered hairdryer?
(Section 3)
1. A parallel-plate capacitor has a capacitance of 1.3 pF. If a 12.0 V battery is connected to this capacitor, how much electrical potential energy would it store?
2. We demand you to make a parallel-plate capacitor having a capacitance of 1.00 F and a plate separation of 1.00 mm. Calculate the required surface area of each plate.
Faughn, Jerry S., and Raymond A. Serway. Holt Physics. Austin: Harcourt Classroom Education Company, 2002.